High PCH Temperature!

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bentoo

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Jan 21, 2012
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Hello,
I own a Dell Inspiron 15R (N5110).The cpu is intel i5 2410M.
The problem is the pch temperature always remains high atleast 65C idle and goes upto 100C when gaming and sometimes shuts the whole system down.
Btw graphic card is Nvidia GT-525M.
It used to stay low before 3-4 months before i could even overclock the gpu then without any overheating problems but now i can't even overclock to get a couple of more FPS in games.I have already disabled turbo boost while gaming.
So i wanted to ask if this is normal or any suggestions to fix this overheating problem.
 
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Pinhedd

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Aug 7, 2007
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That's strange. Since Intel moved the memory controller and PCIe controllers onto the CPU there's very little left on the PCH, just the SATA controllers, USB controllers, real time clock, firmware EEPROM, and some spare PCIe 2.0 lanes for add-ins. It really shouldn't get too hot and in some cases doesn't even have a heat sink.

Check and see if yours has a heatsink. If it does, it may have become detached, or the thermal material may have dried up or become separated.
 
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bentoo

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Jan 21, 2012
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Thanks for reply,
Yeah thats strange because this started happening after i upgraded to windows 8.And i dont know how to open my laptop :p I could overclock my gpu to higher clocks in windows 7 but i cant do it no more in windows 8,the display driver crashes immediately after applying the clocks.
Maybe windows 8 is the problem..
I need to find a tutorial about how to open my laptop :D
 
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Pinhedd

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Windows 8 is definitely not the problem. You should also not be overclocking anything on a laptop
 
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bentoo

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Yeah,but overclocking gpu is ok i guess.
I checked the cpu fan and i saw a lot of dust in there.I will need to open up the laptop to clean the dust,fact-this laptop is one of the poorly designed laptop by dell.
See this video on youtube a guy tries to replace the hard disk in this laptop model- http://www.youtube.com/watch?v=hLlWZBiTK44
I have never disassembled any laptop before,so i'll need to be careful.
 
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Pinhedd

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Cleaning out the fan is certainly a good idea.

With that in mind, I highly advise against overclocking anything on a laptop, GPU included. Many are already pushed to their thermal limits to keep cooling noise down and to reduce the size of the cooling surface. Furthermore, many laptops use a single heat tunnel or even a single heatsink for both the CPU and the GPU. Be careful!
 
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